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Radiant|Lab Grown|IGI

1.90ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG780637005

Certificate IGI LG780637005

Diamond specifications and retailer prices

From $566 USD
Save $3,534 USD (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,100 USD at Brilliant Earth
View at Brilliant Earth

About this 1.9ct lab-grown radiant diamond

This 1.9ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780637005 or 780637005. Listed at 20 retailers, with prices from $566 to $4,100 at Brilliant Earth, a $3,534 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.90
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780637005
Dimensions8.77 × 6.19 × 4.13 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.77 mm6.19 mm1.90 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780637005
Side View
Table 64.0%Crown 42.1°Girdle: MediumPavilion 35.7°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $4,100 USD|Low: $403 USD|High: $4,100 USD|Avg: $1,610 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
September 30, 2026
Retailer 5$566 USD
Retailer 14$725 USD
Retailer 3$864 USD
Retailer 15$935 USD
Retailer 2$973 USD
Retailer 9$1,035 USD
Retailer 13$1,054 USD
Retailer 12$1,463 USD
Retailer 7$1,599 USD
Retailer 6$1,829 USD
Retailer 16$1,983 USD
Retailer 8$2,167 USD
Retailer 4$2,372 USD
Retailer 10$2,647 USD
Retailer 11$3,455 USD
Brilliant Earth$4,100 USD

38 data points across 16 retailers

20 retailers$566 USD to $4,100 USD

A
Cheapest Retailer
-
$566 USD
A
Retailer 2
-
$691 USD
HK$5,400 HKD
View
Price last confirmed 27 days ago
A
Retailer 3
-
$725 USD
View
A
Retailer 4
-
$864 USD
View
A
Retailer 5
-
$935 USD
€890 EUR
View
A
Retailer 6
-
$973 USD
View
A
Retailer 7
-
$1,037 USD
£817 GBP
View
A
Retailer 8
-
$1,054 USD
ZAR 17,032 ZAR
View
B+
Retailer 9
-
$1,463 USD
A$2,251 AUD
View
B+
Retailer 10
-
$1,497 USD
View
B+
Retailer 11
-
$1,599 USD
View
B+
Retailer 12
-
$1,829 USD
£1,440 GBP
View
B+
Retailer 13
-
$1,983 USD
SGD 2,680 SGD
View
B+
Retailer 14
-
$2,039 USD
View
B+
Retailer 15
-
$2,167 USD
View
B+
Retailer 16
-
$2,372 USD
View
B
Retailer 17
-
$2,542 USD
View
B+
Retailer 18
-
$2,647 USD
£2,084 GBP
View
B
Retailer 19
-
$3,455 USD
View
Most Expensive
B
Brilliant Earth
19077270A · Oct 1
$4,100 USD
View
19 more retailers have this diamond
Prices start from $566 USDSave up to $3,534 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing.

A
1.90ct Radiant
$566 USD